Plural-walled can.



w. KLI NE.

PLURAL WALLED CAN.

APPLICATION FILED AUG-9. I915.

Patent-19d July 18, 1916.

R m fl NK 1 RT'TORNEK UNITED STAES PATENT onic WALTER LI E, 0F GREENTOWNSHIP, SUMMIT COUNTY, OHIO, ASSIGN'OR TO A.

WILCOX, 0F AKRON, OHIO.

PLURAL-WALLED CAN.

Specification of Letters Patent. Patented J [11y 18, 1916.

1 Application filed August 9, 1915. Serial No. 44,477.

To all whom it may concern:

Be it known that I, WALTER KLiNE, a citi- I zen of the United States,residing at Green townshi in the county of Summit and State 0 Ohio, haveinvented new and useful Improvements in Plural-Walled Cans,

i any form or description with a wall constructed to prevent thetransmission or conductionof heat or cold therethrough without thenecessity of employing a vacuum as a non-conductor. I

The invention further contemplates the production of a containingreceptacle of the type heretofore described which may be formed of metalto render the same stronger and more'durable and provided with wallswhich are highly efficient as non-conductors of heat or cold.

With the foregoing and other ob]ects 1n view, the invention consists inthe novel construction, combination and arrangement of partsconstituting the invention to be hereinafter specifically described andillustrated in the accompanying drawing which forms a part hereofwherein is shown the preferred embodiment of the invention, but it is tobe understood that changes, variations and modifications canbe resortedto which come within the scope of thematter hereinafter claimed.

The drawi g presented is a vertical, central, sectiona view of a sim leform of containing receptacle or can em odying this present invention.

A receptacle or can embodying this invention is shown in its simplestform in the drawing, and as shown comprises an outer member providedwith a lateral wall 1 united to or formed integrally with the bottomwall 2 both preferably formed of spun metal such as thln aluminium, butthe shape, sizeand dimensions of the outer member is immaterial to thisinvention. Positioned within the outer member and spaced therefrom is aninner member having a rat eral wall 3 united with a lower wall 4t ormade integral therewith and the wall 8 preferably provided with anoutwardlyflaring shoulder 5 from which extends an upwardly-projectinginverted frusto-conically-formedfiange 6having a spaceddownwardly-bent-flange 7. The transverse diameter of the inner member,formed by the wall 3, is considerably less than the transverse diameterof the outer member formed by the M1111 so as to provide between the twometallic walls an air space 8. The interior diameter ofthe flange 7 issuch as to nicely fit the upper marginal portion of the wall 1 and thetwo are secured together by some means, suchfor instance, as brazing orsoldering. Positioned between the walls 1 and 3 and spacedfrom both is acup-shaped member having a lateral wall 9 and a lower wall 10 preferablyformed integrally there with and the whole preferably formed of sheetasbestos. At the upper marginal portion of the wall 9 is anupwardly-flaring portion 10 arranged to be secured to the outer face ofthe shoulder 5 by some means such for instance as cement. The asbestosmember will conform in contour generally with the outline of the walls 1and 3 but sufiiciently spaced therefrom to be entirely out of contacttherewith.

- In assembling a receptacle or can such as is shown in the drawings,the asbestos member is slipped over the inner member so that the wallsof the two are in spaced relation and the outwardly-flared portion 10cemented to the shoulder 5, after which the outer member provided withvthe wall. 1 is positioned and the joint between the marginal portion ofthe wall 1 of the outer member and the downturnedyflange 7 of the innermember united by any desired means. v

It will be noted that the inner face of the upwardly-extending flange 6is conical and constitutes a frictional seat for a closure memberdesignated generally by the numeral 11 which comprises an inner memberformed preferably of sheet metal such, for instance,

as aluminium, with an upper wall 12 and a downwardly-turned marginalflange 13 from which projects upwardly a flange 14, the

outer face of which is conically-fashioned and of proper diameter tosnugly and frictionally engage the inner face of the flangeG.

Secured over the upper outer portion of the 1 ferred .method. Positionedbetween the & *viz alls'12 and 15 and arranged in spaced relation withrespect member 11 may be alayer of asbestos and so long as thereto is awall of nonconducting properties such, for instance, as

16 provided at the marginal portion with a downturned flange 17 which issecured in the channel or groove formed between thewalls 13 and 1 1 byany appropriate means, such for instance, as cement or other equalefficient m'eans.

It is pointed out that the entire closure formed so that the walls 12,13, 14 and 15 may beintegral if the latter method proves commerciallypractical the wall 12. is separate from the'wall 15 and the wall 13 fromthe wall respect .By the provision of a can or receptacle such '14and-both arranged in spaced relation with to the non-conducting member16.

as has just been described the transmission of changes of temperaturethrough the composite walls is substantially entirely preventedandresults are obtained equal to the employment of a vacuum between adouble- 7 walled receptacle or jar.

I claim v A receptacle comprising a cup-shaped inner member of sheetmetal provided at the upper end with an outwardly flaring integralflange from which extends upwardly a wall flaring outwardly with aninclination less than the inclination of said flange, said wallterminating at its upper part with an integral downturned portion, acup-shaped member of non-metallic material larger than the first memberarranged around and in spaced relation therewith and provided with anout wardly'fiaring-upper portion adapted to be attached tothe outer faceof said flange, a

cup shaped metallic member larger than said last member positionedthereabout and in spaced relation therewith, the upper portion thereofsecured to and lapping the down-turned upper portion ofthe first memher,and a cover for said receptacle arranged to frictionally engage theinner face of the flaring wall of the first member substantially asdescribed. f

In testimony whereof I have hereunto-set m 1 hand.

5 WALTER KLINE.

